RV Tire Safety: Strange wear on front of Class-A

Strange wear on front of Class-A

Jim said:  “I attended one of your programs at the (FMCA) Redmond rally.  It was most interesting, and it convinced me that you may be the one person who has the background to identify the cause of my issue.  I’ve shown the photos to about 4 different dealers of Goodyear RV tire dealers and I’ve gotten 4 different answers.  I’ve also sketched the phenomena for the service manager at Josam alignment in Orlando, and he says it’s just typical of Goodyear tires, with no way to correct the situation.  It’s also been identified as “rivering,” which has been the subject of numerous posts on RV forums.

My coach is a 2011 34’ Newmar Ventana, on a Freightliner chassis.  I have had the coach weighed and, based on weight plus a safety factory, run them at about 85 PSI cold.  The deeper wear groove at the first groove happens on both the inside and the outside of both front tires, but not on the rear duals.

If you would be so kind as to respond with your thoughts it would be most appreciated.

 Jim S,
 Summerfield, FL (but currently on the road)
Here are the pictures Jim Sent

First I have to say, I wish everyone sending pictures of a tire condition took as good pictures as Jim did.
Well lit and close enough to clearly see the condition in question.
Anyway, here was  my reply:
” Jim,  Glad you enjoyed the seminar. Yes that is classical “Rivering”. This is not something that only happens to Goodyear tires but is also seen on other brands. Its also not seen on all Goodyears either. It is a combination of tread pattern (design) and the selection of components and materials for the tire specification and the suspension characteristics of the vehicle. We design engineers do work at avoiding it but it is something that doesn’t normally show up in our accelerated testing early in the design process so sometimes we can not “fix” it.

In my opinion, it is not a safety concern, but just a wear issue.

The best thing you could do is to swap out the two fronts for one of the set of duals. Now you do need to confirm the OD of the two tires going on as a set of duals is within 1/4″.  The best way to confirm that is to measure the Outside Circumference while fully inflated and confirm the OC is within 3/4″ of each other. Do the measurement before any tire dismounting is done to save $.

I don’t know what wheels you have and sometimes you need to swap wheels sometimes not when moving from front to back.

I did a post or two on my blog and even a YouTube video on RVTravel channel on the topic and importance of matching duals. Just select from the list of “labels” displayed on the right side of my blog page for all the posts concerning DUALS.

Normally “Big Rigs” do not need tire rotation but this is one of the few times it is the correct course of action.

Hope this helps.”

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About smokeycamping

Well let's see have lived in NY for my whole life, have always loved the outdoors (as long as it is warm out) have always hated the cold, and like a dummy have stayed in NY. But now with my second try my wife, we have been camping now for well over 25 yrs. We currently own a 2010 Cedar creek silverback 35TS and can not wait to get out on the highways and see this great country we all call home. Hope to see every National park before my medical issue becomes too bad to travel. I love my African gray parrot (she is my baby) and have two dogs at the time brother and sister mutts, but love them all the same. Have always been a big Nascar fan, love computers (have a number of certificates to build and work on them) am trying to learn photography, enjoy light hiking, being with good friends and folks. country music, pop music and just being outdoors. So I hope someday to meet some of the great people who like what I like and post out there in some great campground somewhere in the country, till then I will keep posting and I hope you keep liking.

Posted on September 8, 2014, in The world as i see it as a camper and who loves his country and tagged , , , , , , , , , , , , , , , . Bookmark the permalink. Leave a comment.

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